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²ÝÁñÉçÇø School Review - Established 2003
The Derryfield School Top 3 · Highest Avg. ACT Score (NH)
Phillips Exeter Academy Top 3 · Oldest Founding Date (NH)
Kimball Union Academy Top 3 · Largest Endowment (NH)

Oldest ²ÝÁñÉçÇø High Schools in New Hampshire

The average private high school in New Hampshire was founded around 1951 (2026-27).
The oldest private high school in New Hampshire is Phillips Exeter Academy, founded in 1781.

Quick Facts (2026-27)

  • # NH Schools Ranked: 62
  • Top 20 Range (Year Founded): 1781–1960
  • NH School Avg.: 1951
  • National School Avg.: 1967

Quick Facts (2026-27)

  • # NH Schools Ranked: 62
  • Top 20 Range (Year Founded): 1781–1960
  • NH School Avg.: 1951
  • National School Avg.: 1967
Show school map — New Hampshire (year founded range: 1781–1960, avg 1951)
Year Founded Range: 1781 1979 Avg. Year Founded: 1919

Oldest ²ÝÁñÉçÇø High Schools in New Hampshire (2026-27)

Showing 62 schools
Phillips Exeter Academy Photo
#1Phillips Exeter Academy
Gr: 9-12 | 1,106 students
Avg. class size: 12 students
Sports: 22
Alternative School
20 Main St
Exeter, NH 03833
(603) 777-3437
1781year founded
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Kimball Union Academy Photo
#2(°Õ2–T3)Kimball Union Academy
Gr: 9-12 | 338 students
Avg. class size: 12 students
Sports: 22 | Extracurriculars: 38
64 Main Street
Meriden, NH 03770
(603) 469-2100
1813year founded
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Map of Kimball Union Academy
#2(°Õ2–T3)Kimball Union Academy
Gr: 9-12 | 343 students
7 Campus Center DriveMeriden, NH 03770
Plainfield, NH 03781
(603) 469-2000
1813year founded
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Map of Pinkerton Academy
#4Pinkerton Academy
Gr: 9-12 | 3,074 students
5 Pinkerton St
Derry, NH 03038
(603) 437-5200
1814year founded
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Brewster Academy Photo
#5Brewster Academy
Gr: 9-12 | 340 students
Avg. class size: 11 students
Sports: 19 | Extracurriculars: 17
80 Academy Drive
Wolfeboro, NH 03894
(603) 569-7200
1820year founded
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New Hampton School Photo
#6New Hampton School
Gr: 9-12 | 330 students
Avg. class size: 11 students
Sports: 17 | Extracurriculars: 18
70 Main Street
New Hampton, NH 03256
(603) 677-3401
1821year founded
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Tilton School Photo
#7Tilton School
Gr: 9-12 | 200 students
Avg. class size: 11 students
Sports: 15 | Extracurriculars: 22
30 School Street
Tilton, NH 03276
(603) 286-1733
(1)
1845year founded
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Proctor Academy Photo
#8Proctor Academy
Gr: 9-12 | 376 students
Avg. class size: 12 students
Sports: 25 | Extracurriculars: 13
204 Main Street
Andover, NH 03216
(603) 735-6641
(2)
1848year founded
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St. Paul's School Photo
#9St. Paul's School
Gr: 9-12 | 540 students
Avg. class size: 10 students
Sports: 21 | Extracurriculars: 31
Episcopal
325 Pleasant Street
Concord, NH 03301
(603) 229-4700
1856year founded
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Map of Coe-brown Northwood Academy
#10Coe-brown Northwood Academy
Gr: 9-12 | 717 students
907 First Nh Tpke
Northwood, NH 03261
(603) 942-5531
1867year founded
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Holderness School Photo
#11Holderness School
Gr: 9-12 | 380 students
Avg. class size: 12 students
Sports: 21 | Extracurriculars: 20
Episcopal
33 Chapel Lane
Plymouth, NH 03264
(603) 536-1257
(2)
1879year founded
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Map of Easterseals Lancaster School
#12Easterseals Lancaster School
Gr: 5-12 | 12 students
Special Education School
525 Prospect St
Lancaster, NH 03584
(603) 206-6700
1907year founded
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Wolfeboro Camp School Photo
#13Wolfeboro Camp School
Gr: 5-12 | 103 students
Avg. class size: 5 students
Sports: 12 | Extracurriculars: 3
Specialized Curriculum
93 Camp School Road
Wolfeboro, NH 03894
(603) 569-3451
1910year founded
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Map of Estabrook Christian School
#14Estabrook Christian School
Gr: 1-9 | 11 students
Seventh Day Adventist
1050 Route 12A
Plainfield, NH 03781
(603) 675-2455
1934year founded
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Dublin School Photo
#15Dublin School
Gr: 9-12 | 162 students
Avg. class size: 10 students
Sports: 15 | Extracurriculars: 40
18 Lehmann Way
Dublin, NH 03444
(603) 563-7075
(2)
1935year founded
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High Mowing School Photo
#16High Mowing School
Gr: PK-12 | 361 students
Avg. class size: 22 students
Sports: 5 | Extracurriculars: 17
Specialized Curriculum
222 Isaac Frye Hwy
Wilton, NH 03086
(603) 654-2391
1942year founded
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Cardigan Mountain School Photo
#17Cardigan Mountain School
Gr: 6-9 | 240 students
Avg. class size: 12 students
Sports: 16 | Extracurriculars: 18
All-boys
62 Alumni Drive
Canaan, NH 03741
(603) 523-3548
1945year founded
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Hampshire Country School Photo
#18Hampshire Country School
Gr: 3-10 | 20 students
Avg. class size: 4 students
Extracurriculars: 8
All-boys
28 Patey Circle
Rindge, NH 03461
(603) 899-3325
1948year founded
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Cedarcrest School Photo
#19Cedarcrest School
Gr: PK-12
Avg. class size: 7 students
Special Education School
91 Maple Avenue
Keene, NH 03431
(603) 358-3384
1952year founded
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Map of St. Thomas Aquinas High School
#20St. Thomas Aquinas High School
Gr: 9-12 | 414 students
Sports: 16
Catholic
197 Dover Point Rd
Dover, NH 03820
(603) 742-3206
(1)
1960year founded
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Bishop Brady High School Photo
#21(°Õ21–T22)Bishop Brady High School
Gr: 9-12 | 258 students
Avg. class size: 14 students
Sports: 17 | Extracurriculars: 24
Catholic
25 Columbus Ave
Concord, NH 03301
(603) 224-7419
(1)
1963year founded
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Bishop Guertin High School Photo
#21(°Õ21–T22)Bishop Guertin High School
Gr: 9-12 | 793 students
Avg. class size: 18 students
Sports: 23
Catholic
194 Lund Road
Nashua, NH 03060
(603) 889-4107
(1)
1963year founded
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The Derryfield School Photo
#23(°Õ23–T24)The Derryfield School
Gr: 6-12 | 389 students
Avg. class size: 15 students
Sports: 16 | Extracurriculars: 50
2108 River Road
Manchester, NH 03104
(603) 669-4524
1964year founded
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Dublin Christian Academy Photo
#23(°Õ23–T24)Dublin Christian Academy
Gr: PK-12 | 161 students
Avg. class size: 13 students
Sports: 3 | Extracurriculars: 8
Christian
106 Page Rd
Dublin, NH 03444
(603) 563-8505
(5)
1964year founded
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Map of Camp E-toh-anee
#25Camp E-toh-anee
Gr: 7-12 | 33 students
All-boys | Alternative School
35 Eckerd Alley Way
Colebrook, NH 03576
(603) 237-8755
1968year founded
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Map of Trinity High School
#26Trinity High School
Gr: 9-12 | 331 students
Catholic
581 Bridge St
Manchester, NH 03104
(603) 668-2910
1970year founded
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Map of Waterville Valley Academy
#27Waterville Valley Academy
Gr: 9-12 | 42 students
Avg. class size: 2 students
Sports: 3
Specialized Curriculum
88 Boulder Path Rd.
Waterville Valley, NH 03215
(603) 236-4246
1972year founded
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Concord Christian Academy Photo
#28(°Õ28–T31)Concord Christian Academy
Gr: PK-12 | 349 students
Avg. class size: 18 students
Sports: 10 | Extracurriculars: 4
Christian
37 Regional Dr.
Concord, NH 03301
(603) 228-8888
(3)
1974year founded
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Map of Laconia Christian Academy
#28(°Õ28–T31)Laconia Christian Academy
Gr: PK-12 | 163 students
Avg. class size: 15 students
Sports: 3 | Extracurriculars: 6
Christian
1386 Meredith Center Rd
Laconia, NH 03246
(603) 524-3250
(2)
1974year founded
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Monarch School of New England Photo
#28(°Õ28–T31)Monarch School of New England
Gr: K-12 | 64 students
Avg. class size: 7 students
Extracurriculars: 2
Special Education School
105 Eastern Avenue
Rochester, NH 03867
(603) 332-2848
(1)
1974year founded
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Map of Nfi North Country Shelter
#28(°Õ28–T31)Nfi North Country Shelter
Gr: 8-11 | 7 students
Special Education School
US-2 & Davenport Rd
Jefferson, NH 03583
(603) 586-7161
1974year founded
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Map of Calvary Christian School
#32(°Õ32–T34)Calvary Christian School
Gr: 7-11 | 6 students
Avg. class size: 4 students
Sports: 2
Baptist
115 Yeaton Rd
Plymouth, NH 03264
(603) 536-4022
1976year founded
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Claremont Christian Academy Photo
#32(°Õ32–T34)Claremont Christian Academy
Gr: PK-12 | 119 students
Avg. class size: 8 students
Sports: 3 | Extracurriculars: 1
Baptist
97 Maple Ave
Claremont, NH 03743
(603) 542-8759
1976year founded
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Map of Tabernacle Christian School
#32(°Õ32–T34)Tabernacle Christian School
Gr: PK-12 | 70 students
Baptist
242 Derry Rd
Litchfield, NH 03052
(603) 883-6310
1976year founded
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Portsmouth Christian Academy Photo
#35Portsmouth Christian Academy
Gr: PK-12 | 673 students
Avg. class size: 15 students
Sports: 10 | Extracurriculars: 16
Christian
20 Seaborne Dr
Dover, NH 03820
(603) 742-3617
(12)
1979year founded
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Show 27 more private schools in New Hampshire (out of 62 total schools)
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Frequently Asked Questions

What is the New Hampshire average private high schools founding year?
The New Hampshire average private high schools founding year is 1951 for 2026-27.
What are the private high schools with oldest founding year in New Hampshire?
The top ranked private high schools in New Hampshire include Phillips Exeter Academy, Kimball Union Academy and Kimball Union Academy.

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